When I first meet my learners, I frame our time together by saying that I'll have them practice again and again to reinforce what they do. And I've come up with my own way of phrasing it: myelinate your neurons.
The body surrounds neurons with myelin, and the more the pathway gets used, the more it gets myelinated. And so I carry that analogy forward to my learners - they must make an attempt to apply what they have studied. It's one thing for the knowledge to be kept somewhere in their memory - it's another thing entirely to draw that information out and use it during clinical encounters.
I usually add that I've done these maneuvers hundreds of times more than they have, so now is their chance to work on growing their skills. Plus they get the benefit of having direct feedback! So that's the vibe that I like to have in our learning sessions - a space for to try and to stumble and to tweak and to adjust.